1
GENERAL INFORMATION
1.1 SPECIFICATIONS
The Thermal Arc™ 400 GTSW AC/DC is a three-phase or single-
phase arc welding power source with Constant Current (CC)
output characteristics.
This unit has a built in TIG SLOPER and PULSER and is
equipped with a gas control valve, lift arc starter, and high-
frequency arc starter for use with Gas Tungsten Arc Welding
(GTAW). This unit is designed for use with Gas Tungsten Arc
(GTAW), Gas Tungten Arc-Pulsed (GTAW-P), Gas Tungsten Arc-
Sloped (GTAW-S), and Shielded Metal Arc (SMAW) welding
processes.
A digital amperage/voltage meter is standard.
Volt-ampere curves show the voltage and amperage output
capabilities of the welding power source. Curves of other set-
tings will fall between the curves shown.
Description
NOTE
Table 1-A
Unit Specifications
Input Data
At Rated Load
No Load
50/60 Hz
Output
Output
Amps KVA KW Amps KVA KW
208 VAC 1-Phase
84
17
12
3.7
0.8
0.4
208 VAC 3-Phase
46
17
12
2.9
0.8
0.4
230 VAC 1-Phase
76
17
12
3.3
0.8
0.4
230 VAC 3-Phase
41
17
12
2.6
0.8
0.4
460 VAC 1-Phase
38
17
12
1.7
0.8
0.4
460 VAC 3-Phase
21
14
12
1.3
0.8
0.4
380 VAC 3-Phase
25
17
12
1.6
0.8
0.4
415 VAC 3-Phase
23
17
12
1.4
0.8
0.4
Figure 1-A
Volt-Ampere Curves
OCV Less than 80V C.C.
Arc Characteristics
"CURRENT" Control
19V
AMPS
5
150
400 420
VOLTS
A-00326
Rated Output
Amperes
400
300
Volts
36
32
Duty Cycle
40%
60%
Range (Min-Max):
Amperes
5-400 DC
10-400 AC
Volts
10-36
Maximum OCV:
75
Input Data
50/60 Hz
Width
13.75 in
(350 mm)
Height
27.75 in
(700 mm)
Length
18.50 in
(470 mm)
Weight
179 lbs (81.2 kg)
Summary of Contents for 400 GTSW AC/DC
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